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Finding the Fourth Proportional to 611,379.88, 917,072.88 and 358,482.49

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Solution

The fourth proportional to 611,379.88, 917,072.88 and 358,482.49 is: 537,725.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,379.88 : 917,072.88 = 358,482.49 : x
  2. Step 2: Convert to fraction form
    611,379.88/917,072.88 = 358,482.49/x
  3. Step 3: Cross multiply
    611,379.88x = 917,072.88 × 358,482.49
  4. Step 4: Simplify right side
    611,379.88x = 328,754,569,533.87
  5. Step 5: Solve for x
    x = 328,754,569,533.87/611,379.88
  6. Step 6: Final answer
    x = 537,725.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.